The first 90 days after buying a business set the tone for everything that follows. The temptation is to change things immediately, but the priority in the early weeks is continuity: keep revenue flowing, keep customers and suppliers confident, and learn how the business actually works before you redesign it.

Days 1 to 30 are for observation and stabilisation. Meet the team, suppliers, and key customers, and let them know the business is in steady hands. Learn the daily and weekly routines, review cash flow daily, and resist the urge to renegotiate contracts or change pricing. Document everything you learn, including the informal knowledge the seller carries in their head, while the seller is still available to answer questions.

Days 31 to 60 are for quick wins and systems. Fix obvious problems that carry no risk: broken links, slow pages, unanswered customer emails, or a supplier order process that depends on one person. Put basic reporting in place so you can see revenue, costs, and cash flow weekly without digging through accounts. Start small experiments, such as a new marketing channel or a pricing test, but keep them reversible.

Days 61 to 90 are for planning the next phase. By now you understand what drives revenue, where the costs sit, and which parts of the business are fragile. Write a 12-month plan with clear priorities, and decide which growth bets deserve investment and which distractions to cut. Share the plan with your team so everyone knows the direction.

Throughout the 90 days, protect the relationships that make the business work. Customers, suppliers, and staff all watch a new owner closely in the early weeks. Communicate clearly, deliver on small promises, and avoid surprises. A calm, well-run transition is worth more than any single quick improvement.

Measure the first 90 days against a short list of metrics you set in week one: revenue, gross margin, cash balance, customer retention, and the hours you personally spend on operations. Review them weekly. If revenue holds but your hours are climbing, the business is more owner-dependent than you thought, and your priority should shift to hiring or systematising. If margins slip, find the cause before it becomes a trend. A simple weekly scorecard keeps the transition honest and stops small problems from growing quietly.